Description
In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix incomplete endpoint checking While vmk80xx does have endpoint checking implemented, some things can fall through the cracks. Depending on the hardware model, URBs can have either bulk or interrupt type, and current version of vmk80xx_find_usb_endpoints() function does not take that fully into account. While this warning does not seem to be too harmful, at the very least it will crash systems with 'panic_on_warn' set on them. Fix the issue found by Syzkaller [1] by somewhat simplifying the endpoint checking process with usb_find_common_endpoints() and ensuring that only expected endpoint types are present. This patch has not been tested on real hardware. [1] Syzkaller report: usb 1-1: BOGUS urb xfer, pipe 1 != type 3 WARNING: CPU: 0 PID: 781 at drivers/usb/core/urb.c:504 usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503 ... Call Trace: <TASK> usb_start_wait_urb+0x113/0x520 drivers/usb/core/message.c:59 vmk80xx_reset_device drivers/comedi/drivers/vmk80xx.c:227 [inline] vmk80xx_auto_attach+0xa1c/0x1a40 drivers/comedi/drivers/vmk80xx.c:818 comedi_auto_config+0x238/0x380 drivers/comedi/drivers.c:1067 usb_probe_interface+0x5cd/0xb00 drivers/usb/core/driver.c:399 ... Similar issue also found by Syzkaller:
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
49253d542cc0f5f771dc254d248162a2a666649d to < 3a63ae0348d990e137cca04eced5b08379969ea9affected49253d542cc0f5f771dc254d248162a2a666649d to < a3b8ae7e9297dd453f2977b011c5bc75eb20e71baffected49253d542cc0f5f771dc254d248162a2a666649d to < f15370e315976198f338b41611f37ce82af6cf54affected49253d542cc0f5f771dc254d248162a2a666649d to < b0b268eeb087e324ef3ea71f8e6cabd07630517faffected49253d542cc0f5f771dc254d248162a2a666649d to < ac882d6b21bffecb57bcc4486701239eef5aa67baffected49253d542cc0f5f771dc254d248162a2a666649d to < 59f33af9796160f851641d960bd93937f282c696affected49253d542cc0f5f771dc254d248162a2a666649d to < 6ec3514a7d35ad9cfab600187612c29f669069d2affected49253d542cc0f5f771dc254d248162a2a666649d to < d1718530e3f640b7d5f0050e725216eab57a85d8affected
Linux Linux
Default version status: affected
3.9affected0 to < 3.9unaffected4.19.313 to ≤ 4.19.*unaffected5.4.275 to ≤ 5.4.*unaffected5.10.216 to ≤ 5.10.*unaffected5.15.157 to ≤ 5.15.*unaffected6.1.88 to ≤ 6.1.*unaffected6.6.29 to ≤ 6.6.*unaffected6.8.8 to ≤ 6.8.*unaffected6.9 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/3a63ae0348d990e137cca04eced5b08379969ea9 ↗
- https://git.kernel.org/stable/c/a3b8ae7e9297dd453f2977b011c5bc75eb20e71b ↗
- https://git.kernel.org/stable/c/f15370e315976198f338b41611f37ce82af6cf54 ↗
- https://git.kernel.org/stable/c/b0b268eeb087e324ef3ea71f8e6cabd07630517f ↗
- https://git.kernel.org/stable/c/ac882d6b21bffecb57bcc4486701239eef5aa67b ↗
- https://git.kernel.org/stable/c/59f33af9796160f851641d960bd93937f282c696 ↗
- https://git.kernel.org/stable/c/6ec3514a7d35ad9cfab600187612c29f669069d2 ↗
- https://git.kernel.org/stable/c/d1718530e3f640b7d5f0050e725216eab57a85d8 ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html ↗
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/ ↗
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/ ↗
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/ ↗